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@@ -455,15 +455,20 @@ static struct device_attribute fw_device_attributes[] = {
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static int read_rom(struct fw_device *device,
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int generation, int index, u32 *data)
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{
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- int rcode;
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+ u64 offset = (CSR_REGISTER_BASE | CSR_CONFIG_ROM) + index * 4;
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+ int i, rcode;
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/* device->node_id, accessed below, must not be older than generation */
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smp_rmb();
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- rcode = fw_run_transaction(device->card, TCODE_READ_QUADLET_REQUEST,
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- device->node_id, generation, device->max_speed,
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- (CSR_REGISTER_BASE | CSR_CONFIG_ROM) + index * 4,
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- data, 4);
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+ for (i = 10; i < 100; i += 10) {
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+ rcode = fw_run_transaction(device->card,
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+ TCODE_READ_QUADLET_REQUEST, device->node_id,
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+ generation, device->max_speed, offset, data, 4);
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+ if (rcode != RCODE_BUSY)
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+ break;
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+ msleep(i);
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+ }
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be32_to_cpus(data);
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return rcode;
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